Question

150

auth/user-not-found when signing in user with Firebase

rated 0 times [ 152] [ 2] / answers: 1 / hits: 15476 / 8 Years ago, tue, august 30, 2016, 12:00:00

I have a firebase app connected to monaca CLI and OnsenUI. I am trying to create a user and log them in in the same action. I can successfully create a user, but I can't log in. When I log them in I get the following error

auth/user-not-found

and

There is no user record corresponding to this identifier. The User may have been deleted

I confirmed that the new user is in the db...Here is my code for the signup and signin

//signup function stuff

var login = function() {

  console.log('got to login stuff');

  var email = document.getElementById('username').value;

  var password = document.getElementById('password').value;



  //firebases authentication code

  firebase.auth().createUserWithEmailAndPassword(email, password).catch(function(error) {

    // Handle Errors here.

    var errorCode = error.code;

    var errorMessage = error.message;

    console.log('User did not sign up correctly');

    console.log(errorCode);

    console.console.log(errorMessage);

  });



  firebase.auth().signInWithEmailAndPassword(email, password).catch(function(error) {

     console.log(error.code);

     console.log(error.message);

  });



  fn.load('home.html');





};

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giovanny

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2 Years ago

answered 8 Years ago masonm · Accepted Answer

You have a so-called race condition in your flow.

When you call createUserWithEmailAndPassword() Firebase starts creating the user account. But this may take some time, so the code in your browser continues executing.

It immediately continues with signInWithEmailAndPassword(). Since Firebase is likely still creating the user account, this call will fail.

The solution in general with this type of situation is to chain the calls together, for example with a then():

firebase.auth().createUserWithEmailAndPassword(email, password).then(function(user) {

  firebase.auth().signInWithEmailAndPassword(email, password).catch(function(error) {

     console.log(error.code);

     console.log(error.message);

  });

}).catch(function(error) {

  // Handle Errors here.

  var errorCode = error.code;

  var errorMessage = error.message;

  console.log('User did not sign up correctly');

  console.log(errorCode);

  console.console.log(errorMessage);

});

But as André Kool already commented: creating a user automatically signs them in already, so in this case you can just do:

firebase.auth().createUserWithEmailAndPassword(email, password).then(function(user) {

  // User is created and signed in, do whatever is needed

}).catch(function(error) {

  // Handle Errors here.

  var errorCode = error.code;

  var errorMessage = error.message;

  console.log('User did not sign up correctly');

  console.log(errorCode);

  console.console.log(errorMessage);

});

You'll likely soon also want to detect whether the user is already signed in when they get to your page. For that you'd use onAuthStateChanged. From the docs:

firebase.auth().onAuthStateChanged(function(user) {

  if (user) {

    // User is signed in.

  } else {

    // No user is signed in.

  }

});